| Pub. Date | : May, 2020 |
|---|---|
| Product Name | : The IUP Journal of Mechanical Engineering |
| Product Type | : Article |
| Product Code | : IJME110520 |
| Author Name | : Pramod B Dhaigude, Nitin D Gadhave |
| Availability | : YES |
| Subject/Domain | : Engineering |
| Download Format | : PDF Format |
| No. of Pages | : 18 |
The paper optimizes the operating parameters using Jatropha methyl ester and its blend as a fuel in compression ignition engine. Orthogonal array L16 is selected for experiment with five operating parameters and four levels each. Operating parameters such as %blend, nozzle geometry, injection pressure, compression ratio and EGR rate are optimized. From this analysis, it is observed that the engine gives better performance for optimum combination of operating parameters and found to be for 100% load as: 10% and 40% blend, 3 hole and 5 hole nozzle geometry, 210 bar injection pressure, 15:1 and 16:1 compression ratio and 4% and 12% EGR rate. It is also concluded that with the usage of diesel fuel in this engine, vibration severity increases as compared Jatropha biodiesel and its blend as fuel. Also, it is found that acceleration (vibration) is mostly affected by injection pressure and nozzle geometry under full load condition. The experimental conformation test also revealed that regression analysis technique is suitable for optimization.
Increasing cost of fossil fuel due to depletion of current energy resources, stricter legislative emission standards due to increased environmental concerns and need for searching complementary renewable fuels have reached the critical condition (Yang et al., 2002). Hence, there is a need for optimum utilization of conventional fuels for prolonged use. Moreover, developing alternative fuels from regional renewable resources available locally can play a key role in improving rural economy (Rao et al., 2008 and Stman, 2008). These are some reasons for gaining the international attention for development of alternative renewable energy resources. Oil is world's primary source of energy and chemicals with a current demand of about 12 million tons per day and it is expected to reach 16 million tons per day by 2030. At present, 30% of the global oil consumption is used for transportation sector and it is expected to increase by 60% till 2030 (Harari and Patil, 2016; and Alisaraei, 2016). However, with increasingly stricter emission norms, there is a need to search ways of using complementary fuels, which are less polluting. Biofuels are the best source of alternative renewable energy among the possible alternatives for reducing emission worldwide. Moreover, the inventor of the diesel engine, Rudolph Diesel, first tested peanut oil, which is a renewable oil, in his compression ignition engine. He said "the use of vegetable oils for engine fuels may seem insignificant today, but such oils may in course of time be as important as petroleum and the coal tar products of the present time". Several countries, including India, had already begin substituting conventional diesel with a certain amount of methyl ester (Balajiganesh and Reddy, 2011; and Ghobadian, 2012). Methyl esters obtained from the feedstock such as karajan, rapeseed, soybean, sunflower and Jatropha are some of the popular methyl esters currently considered as complementary fuels for diesel.
Vibration, Biodiesel, Jatropha, Taguchi, Injection pressure